Chirality Synthesis of N-Shaped ZnO Nanorods by Glacial Acetic Acid Assisted Annealing Process and Ethanol Sensing Properties

Abstract:

N-shaped ZnO nanorods were first chirality synthesized by glacial acetic acid assisted annealing process. X-ray powder diffraction results show that these nanorods are of ZnO wurtzite-structure. These nanorods grow from a thin platelet base and are parallel to each other to form n-shaped ZnO nanorods. The width of thin platelet bases range from 50 to 130 nm. The diameters of the nanorods rang from 25 to 60nm, and their lengths are 0.2—0.6um. Gas sensors fabricated from these n-shaped ZnO nanorods show a very high sensitivity to ethanol gas and the sensitivity is up to about 35 against 1000 ppm ethanol gas at the operating temperature of 300°C.

• Periodical: Materials Science Forum (Volume 815)
• Pages: 458-463
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.815.458
• Online since: March 2015
• Authors: Zao Yang*, Quan Hui Liu, Tai Hong Wang, Yun Bing Wang
• Keywords: Ethanol Sensing Properties, Glacial Acetic Acid, Nanorods, N-Shaped, ZNO

References

[1] M. H. Huang, S. Mao, H. Feick, H. Yan, Y. Wu, H. Kind, E. Weber, R. Russo, P. Yang, Room-temperature ultraviolet nanowire nanolasers, Science 292 (2001), 1897.

DOI: 10.1126/science.1060367

[2] B. Liu, H. C. Zeng, Hydrothermal Synthesis of ZnO Nanorods in the Diameter Regime of 50 nm, J. Am. Chem. Soc. 125 (2003) , 4430.

DOI: 10.1021/ja0299452

[3] Z. W. Pan, Z. R. Dai, Z. L. Wang, Nanobelts of semiconducting oxides, Science 291 (2001) , (1947).

[4] L. Vayssieres, K. Keis, A. Hagfeldt, S. E. Lindquist , Three-Dimensional Array of Highly Oriented Crystalline ZnO Microtubes, Chem. Mater. 13 (2001), 4395.

DOI: 10.1021/cm011160s

[5] J. Q. Hu, Q. Li, X. M. Meng, C. S. Lee, S. T. Lee, Thermal Reduction Route to the Fabrication of Coaxial Zn/ZnO Nanocables and ZnO Nanotubes, Chem. Mater. 15(2003) , 305.

DOI: 10.1021/cm020649y

[6] D. J. Milliron, S. Hughes, Y. Cui, L. Manna, J. Li, L. W. Wang, A. P. Alivisatos , Colloidal Nanocrystal Heterostructures with Linear and Branched Topology, Nature 430 (2004) , 190.

DOI: 10.1038/nature02695

[7] D. Ledwith, S. C. Pillai, G.W. Watson, J. M. Kelly, Microwave induced preparation of a-axis oriented double-ended needle-shaped ZnO microparticles, Chem. Commun. (2004) 2294.

DOI: 10.1039/b407768g

[8] P. Hu, Y. Liu, X. Wang, L. Fu, D . Zhu, Tower-like structure of ZnO nanocolumns, Chem. Commun. (2003) 1304.

DOI: 10.1039/b302821f

[9] Z. R. Tian, J. A. Voigt, J. Liu, B. Mckenzie, M. J. Mcdermott , Biomimetic Arrays of Oriented Helical ZnO Nanorods and Columns, J. Am. Chem. Soc. 124(2002), 12954.

DOI: 10.1021/ja0279545

[10] Y. Zhang, H. Jia, X. Luo, X. Chen, D. Yu, R. Wang, Synthesis, Microstructure, and Growth Mechanism of Dendrite ZnO Nanowires, J. Phys. Chem. B. 107(2003), 8289.

DOI: 10.1021/jp034834q

[11] J. Y. Lao, J. Y. Huang, D. Z. Wang, Z. F. Ren, ZnO Nanobridges and Nanonails, Nano Lett. 3(2003), 235.

DOI: 10.1021/nl025884u

[12] X. Y. Kong, Z. L. Wang, Spontaneous Polarization-Induced Nanohelixes, Nanosprings, and Nanorings of Piezoelectric Nanobelts, Nano Lett. 3(2003), 1625.

DOI: 10.1021/nl034463p

[13] H. Yan, R. He, J. Johnson, M. Law, R. J. Saykally, P. Yang, Dendritic Nanowire Ultraviolet Laser Array, J. Am. Chem. Soc. 125(2003), 4728.

DOI: 10.1021/ja034327m

[14] P. Gao, Z. L. Wang, Self-Assembled Nanowire−Nanoribbon Junction Arrays of ZnO, J. Phys. Chem. B. 106 (2002), 12653.

DOI: 10.1021/jp0265485

[15] R. H. Wang, J. H. Xin, X. M. Tao, W. A. Daoud, ZnO Nanorods grown on cotton fabrics at low temperature, Chem. Phys. Lett. 398(2004), 250.

DOI: 10.1016/j.cplett.2004.09.077

[16] Y. Dai, Y. Zhang, Z. L. Wang, The octa-twin tetraleg ZnO nanostruclures, Solid State Commun. 126(2003), 629.

DOI: 10.1016/s0038-1098(03)00277-1

[17] Q. Wan, Q. H. Li, Y. J. Chen, T. H. Wang, X. L. He, J. P. Li, C. L. Lin, Fabrication and ethanol sensing characteristics of ZnO nanowire gas sensors, Appl. Phys. Lett. 84(2004), 3654.

DOI: 10.1063/1.1738932

[18] P. Feng, Q. Wan, T. H. Wang, Contact-controlled sensing properties of flowerlike ZnO nanostructures, Appl. Phys. Lett. 87 (2005), 213111.

DOI: 10.1063/1.2135391

[19] Y. J. Chen, X. Y. Xue, Y. G. Wang, T. H. Wang, Synthesis and ethanol sensing characteristics of single crystalline SnO2 nanorods, Appl. Phys. Lett. 87(2005), 233503.

DOI: 10.1063/1.2140091

[20] H. Windischmann, P. Mark, Model for the operation of a thin-Film SnOx conductance–modulation carbon monoxide, sensorJ. Electrochem. Soc. 126(1979), 627.

DOI: 10.1149/1.2129098

[21] J. Xu, Q. Pan, Y. Shun, Z. Tian, Grain size control and gas sensing properties of ZnO gas sensor, Sens. Actuators B 66 (2000), 277.

DOI: 10.1016/s0925-4005(00)00381-6